EP1048943A3 - Map preparing method used for engine testing apparatus or vehicle testing apparatus, and engine testing apparatus - Google Patents
Map preparing method used for engine testing apparatus or vehicle testing apparatus, and engine testing apparatus Download PDFInfo
- Publication number
- EP1048943A3 EP1048943A3 EP00108865A EP00108865A EP1048943A3 EP 1048943 A3 EP1048943 A3 EP 1048943A3 EP 00108865 A EP00108865 A EP 00108865A EP 00108865 A EP00108865 A EP 00108865A EP 1048943 A3 EP1048943 A3 EP 1048943A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- throttle valve
- engine
- testing apparatus
- torque
- curves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
- G01M15/048—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
- G01M15/044—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring power, e.g. by operating the engine with one of the ignitions interrupted; by using acceleration tests
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
This invention provides a map preparing method used for an engine testing apparatus or a vehicle testing apparatus capable of preventing a peculiar driving state from being generated.
This invention provides a map preparing method used for an engine testing apparatus or a vehicle testing apparatus comprising the steps of: varying a throttle valve from its fully closed position to its fully opened position while keeping rotation of an engine constantly, carrying out operation for storing an output torque Nm at that time using at least three kinds of different engine rotation number, determining each of obtained torque curves A∼ E as actual machine data, and preparing a map based on the actual machine date, characterized by comprising the steps of: describing each of the torque curves A ∼E on the same X-Y plane when a map is prepared based on the actual machine data; converting actual machine data function for describing torque approximate curves a ∼ e with respect to throttle opening degrees (X axis) on the same X-Y plane while making approximations to the torque curves; judging whether there exists intersection of torque approximate curves a ∼ e; and automatically correcting one of the torque approximate curves c which can be judged as peculiar such that a value Y1 of y-piece of the torque approximate curve c which is seemed to be peculiar among the intersecting torque approximate curves b,c in the judging step assumes a medium value Y2 , Y3 of values of y-pieces of each of the vertically adjacent torque approximate curves b,d.
And this invention provides a map preparing method used for an engine testing apparatus or a vehicle testing apparatus capable of enhancing the simulation accuracy.
This invention provides a map preparing method used for an engine testing apparatus or a vehicle testing apparatus comprising the steps of: calculating an average value in throttle valve opening direction S and an average value in throttle valve closing direction G from variation of the throttle valve operation speed 33; determining the average value of the throttle valve in the throttle valve opening direction S obtained by the calculation as a representative value corresponding to the throttle valve operating in the throttle valve opening direction in a mode driving, operating the throttle valve in its opening direction in a state where the engine rotation number is made constant by this representative value and describing the torque curves 35 with a plurality of different engine rotation number, and preparing a map in the throttle valve opening direction based on the obtained torque curves 35, determining the average value of the throttle valve in the throttle valve closing direction G obtained by the calculation as a representative value corresponding to the throttle valve operating in the throttle valve closing direction in a mode driving, operating the throttle valve in its closing direction in a state where the engine rotation number is made constant by this representative value G and describing the torque curves 36 with a plurality of different engine rotation number, and preparing a map in the throttle valve closing direction based on the obtained torque curves 36.
And also this invention provides an engine testing apparatus capable of carry out a simulation of an actual vehicle running with high accuracy.
This invention provides an engine testing apparatus comprising a dynamometer 3 connected to an output section 2a of an engine 2 under test which is to be tested, a dynamo controller 3' for controlling the dynamometer 3, and an actuator 5 for controlling a throttle opening degree of the engine 2 under test, the dynamo controller 3' and the actuator 5 are controlled to adjust an output of the engine 2 under test, wherein commands based on a temperature pattern 58 obtained based on temperature data of various portions around the engine obtained when an actual vehicle running is tested in accordance with a running pattern on a chassis dynamo from an apparatus for controlling the entire apparatus to various temperature adjusting devices 51 provided around the engine 2 under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09000579A EP2045592A1 (en) | 1999-04-30 | 2000-04-26 | Vehicle or engine testing apparatus |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11123874A JP2000314682A (en) | 1999-04-30 | 1999-04-30 | Engine test device |
| JP12387499 | 1999-04-30 | ||
| JP13430299 | 1999-05-14 | ||
| JP13426099 | 1999-05-14 | ||
| JP13426099A JP4189083B2 (en) | 1999-05-14 | 1999-05-14 | Method for creating map for use in engine test apparatus or vehicle test apparatus |
| JP13430299A JP3645743B2 (en) | 1999-05-14 | 1999-05-14 | Method for creating map for use in engine test apparatus or vehicle test apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09000579A Division EP2045592A1 (en) | 1999-04-30 | 2000-04-26 | Vehicle or engine testing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1048943A2 EP1048943A2 (en) | 2000-11-02 |
| EP1048943A3 true EP1048943A3 (en) | 2007-09-05 |
Family
ID=27314817
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09000579A Withdrawn EP2045592A1 (en) | 1999-04-30 | 2000-04-26 | Vehicle or engine testing apparatus |
| EP00108865A Withdrawn EP1048943A3 (en) | 1999-04-30 | 2000-04-26 | Map preparing method used for engine testing apparatus or vehicle testing apparatus, and engine testing apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09000579A Withdrawn EP2045592A1 (en) | 1999-04-30 | 2000-04-26 | Vehicle or engine testing apparatus |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US6662637B1 (en) |
| EP (2) | EP2045592A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT6235U3 (en) | 2003-02-28 | 2004-01-26 | Avl List Gmbh | METHOD FOR CONTROLLING A TEST BENCH |
| US6918287B2 (en) * | 2003-08-25 | 2005-07-19 | James M. Laws | Method and apparatus for measuring the acceleration of an engine |
| DE10345615A1 (en) * | 2003-09-29 | 2005-05-19 | Robert Bosch Gmbh | System and method for testing control operations on a vehicle |
| AT7889U3 (en) * | 2005-06-15 | 2006-12-15 | Avl List Gmbh | METHOD FOR TESTING A DYNAMIC TORQUE GENERATOR AND DEVICE FOR DETERMINING THE DYNAMIC BEHAVIOR OF A CONNECTION SHAFT |
| DE102007031110B4 (en) * | 2007-07-04 | 2011-01-27 | Audi Ag | Method and arrangement for fully automatic functional testing of internal combustion engines |
| JP4644722B2 (en) * | 2008-03-31 | 2011-03-02 | 日立建機株式会社 | Electric drive vehicle |
| KR101047036B1 (en) * | 2009-10-16 | 2011-07-06 | 한국과학기술원 | Online electric vehicle energy consumption measurement device and method thereof |
| US8186206B2 (en) | 2010-04-16 | 2012-05-29 | Avl North America Inc. | Polymer base for hybrid powertrain and NVH test installations |
| CN103471749B (en) * | 2013-08-29 | 2015-08-19 | 北京宇航系统工程研究所 | A kind of method measured valve assembling moment and relax |
| JP6132722B2 (en) * | 2013-09-24 | 2017-05-24 | 株式会社堀場製作所 | Driving mode display device and vehicle mode display program |
| WO2017099655A1 (en) * | 2015-12-08 | 2017-06-15 | Scania Cv Ab | A method and a system for controlling an output torque of an electric machine in a vehicle |
| JP7305492B2 (en) * | 2019-09-11 | 2023-07-10 | 株式会社Subaru | Mode driving assistance system for vehicles |
| CN111458153A (en) * | 2020-03-24 | 2020-07-28 | 浙江飞碟汽车制造有限公司 | Zero-torque rack of pure electric vehicle motor and testing method thereof |
| CN112484075B (en) * | 2020-12-01 | 2023-04-21 | 中国航发沈阳发动机研究所 | Combustion chamber outlet temperature field correction method |
| CN113848006B (en) * | 2021-09-26 | 2024-02-06 | 上汽通用五菱汽车股份有限公司 | Acceleration demand torque MAP calibration method and device and readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195038A (en) * | 1989-06-07 | 1993-03-16 | Ono Sokki Co., Ltd. | Throttle predictive controller in automatic engine tester |
| EP0728921A2 (en) * | 1995-02-21 | 1996-08-28 | Honda Giken Kogyo Kabushiki Kaisha | Engine output control system for vehicle |
| EP0857958A1 (en) * | 1997-02-10 | 1998-08-12 | Angelantoni Industrie SpA | System for the rapid cooling of engines on a test bench and relative device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466294A (en) * | 1981-12-31 | 1984-08-21 | Edi | Transient driving cycle simulator test system |
| JPS62123329A (en) | 1985-11-22 | 1987-06-04 | Mitsubishi Electric Corp | Controller for engine test |
| US5107815A (en) * | 1990-06-22 | 1992-04-28 | Massachusetts Institute Of Technology | Variable air/fuel engine control system with closed-loop control around maximum efficiency and combination of otto-diesel throttling |
| JP3025978B2 (en) | 1991-06-07 | 2000-03-27 | 株式会社小野測器 | Engine performance recording method and apparatus in engine test apparatus |
| WO1996036863A1 (en) * | 1995-05-18 | 1996-11-21 | Toyota Jidosha Kabushiki Kaisha | Durability test method for exhaust gas purification device |
| US5834654A (en) * | 1996-03-11 | 1998-11-10 | Mcfarland; Robert A. | Torque and temperature control for a water brake dynamometer |
-
2000
- 2000-04-26 EP EP09000579A patent/EP2045592A1/en not_active Withdrawn
- 2000-04-26 EP EP00108865A patent/EP1048943A3/en not_active Withdrawn
- 2000-04-26 US US09/559,152 patent/US6662637B1/en not_active Expired - Fee Related
-
2003
- 2003-05-27 US US10/446,420 patent/US6834541B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195038A (en) * | 1989-06-07 | 1993-03-16 | Ono Sokki Co., Ltd. | Throttle predictive controller in automatic engine tester |
| EP0728921A2 (en) * | 1995-02-21 | 1996-08-28 | Honda Giken Kogyo Kabushiki Kaisha | Engine output control system for vehicle |
| EP0857958A1 (en) * | 1997-02-10 | 1998-08-12 | Angelantoni Industrie SpA | System for the rapid cooling of engines on a test bench and relative device |
Non-Patent Citations (1)
| Title |
|---|
| STAUBER R ET AL: "NEUE BMW-MOTORPRUFSTANDE ZUR SIMULATION VON HOHE UND KLIMA", MTZ MOTORTECHNISCHE ZEITSCHRIFT, VIEWEG VERLAG, WIESBADEN, DE, vol. 50, no. 11, 1 November 1989 (1989-11-01), pages 540 - 547, XP000095272, ISSN: 0024-8525 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040040374A1 (en) | 2004-03-04 |
| US6834541B2 (en) | 2004-12-28 |
| EP2045592A1 (en) | 2009-04-08 |
| EP1048943A2 (en) | 2000-11-02 |
| US6662637B1 (en) | 2003-12-16 |
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| RTI1 | Title (correction) |
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